FSDM07652RB
Typical application circuit
Features
• High efficiency (>81% at 85Vac input)
• Low zero load power consumption (<300mW at 240Vac input)
• Low standby mode power consumption (<800mW at 240Vac input and 0.3W load)
• Low component count
• Enhanced system reliability through various protection functions
• Internal soft-start (10ms)
Key Design Notes
• Resistors R102 and R105 are employed to prevent start-up at low input voltage
• The delay time for over load protection is designed to be about 50ms with C106 of 47nF. If a faster triggering of OLP is
required, C106 can be reduced to 10nF.
1. Schematic
Application
Output power
Input voltage
Output voltage (Max current)
LCD Monitor
40W
Universal input
(85-265Vac)
5V (2.0A)
12V (2.5A)
3
4
C102
220nF
275VAC
LF101
23mH
C101
220nF
275VAC
RT1
5D-9
F1
FUSE
250V
2A
C103
100uF
400V
R102
30k
Ω
Ω
Ω
Ω
R105
40k
Ω
Ω
Ω
Ω
R103
56k
Ω
Ω
Ω
Ω
2W
C104
10nF
1kV
D101
UF 4007
C106
47nF
50V
C105
22uF
50V
D102
TVR10G
R104
5
Ω
Ω
Ω
Ω
1
2
3
4
5
T1
EER3016
BD101
2KBP06M3N257
1
2
R101
560k
Ω
Ω
Ω
Ω
1W
FSDM07652RB
Vstr
NC
Vfb
Vcc
Drain
GND
1
2
3
4
5
6
ZD101
22V
8
10
D202
MBRF10100
C201
1000uF
25V
C202
1000uF
25V
L201
12V, 2.5A
6
7
D201
MBRF1045
C203
1000uF
10V
C204
1000uF
10V
L202
5V, 2A
R201
1k
Ω
Ω
Ω
Ω
R202
1.2k
Ω
Ω
Ω
Ω
R204
5.6k
Ω
Ω
Ω
Ω
R203
1.2k
Ω
Ω
Ω
Ω
C205
47nF
R205
5.6k
Ω
Ω
Ω
Ω
C301
4.7nF
IC301
H11A817A
IC201
KA431
64
Summary of Contents for DW9937S
Page 1: ...SERVICE MANUAL DW9937S Ver 0 0 ...
Page 3: ...1 ...
Page 4: ...2 ...
Page 5: ...3 ...
Page 7: ...EXPLODED VIEW 5 5 ...
Page 15: ...14 13 ...
Page 16: ...15 14 ...
Page 17: ...16 15 ...
Page 18: ...17 IS2 16 ...
Page 22: ...MITSUMI I2 C BUS Control 5 Input 2 Output AV Switch MM1313 Equivalent Block Diagram 20 ...
Page 70: ...FSDM07652RB Package Dimensions TO 220F 6L Forming 68 ...
Page 74: ...72 ...
Page 75: ...11 Terminal for External Connection Outline Drawing 73 ...
Page 99: ...97 ...
Page 100: ...98 ...
Page 101: ...99 ...
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